8GB Kit (2x 4GB) DDR3 SODIMM RAM Memory 1066/1067MHz For Apple pc3-8500s 0x80ce | eBay
8GB Kit 2x 4GB DDR3 DDR3L 1600 MHz PC3-12800 Sodimm Memory Apple MAC – ASA College: Florida
Komputerbay 8GB (2X 4GB) DDR3 SODIMM (204 pin) Made with Hynix semiconductors 1333Mhz PC3 10600 8 GB with SODIMM Heatsink for Extra Cooling (8-8-8-24) at Amazon.com
8GB (2 X 4GB) DDR3 1600MHz PC3-12800 240-pin Memory RAM DIMM Kit for Desktop PC by NEMIX RAM at Amazon.com